SYNTHESIS OF SILVER NANOPARTICLES FUNCTIONALIZED WITH AQUEOUS EXTRACT (Burseragraveolens) AND ANTIMICROBIAL EVALUATION IN Escherichia coli, Staphylococcus aureus AND Klebsiellapneumoniae
Journal Title: Periódico Tchê Química - Year 2017, Vol 14, Issue 27
Abstract
Currently, resistance to antibiotics has become a problem for the treatment of infectious diseases. In this study, silver nanoparticles were synthesized using the aqueous extract of Palo santo (Burseragraveolens), for its biocide action, in order to determine its antimicrobial effect on Escherichia coli and Staphylococcus aureus. Different concentrations of nanoparticles (100 until1000 ppm) were evaluated at contact times of 1, 2, 5 and 10 minutes for 1500 and 15000 CFU/mL. Additionally, to determine effectiveness, disc diffusion tests using various concentrations of nanoparticles (500-1000 ppm) were performed on S.aureus and K. pneumoniae. According to the results of antimicrobial effect for E.coli, the effectiveness of nanoparticles can be established at all contact times for 1500 CFU from 800 ppm and for 15000 CFU from 400 ppm. With S.aureus, total inhibition was showed from 800 ppm in 1500 CFU at 5 minutes of contact and between 500-1000 ppm with 15000 CFU at minute one. S. aureus and K.pneumoniae tests showed sensitivity with nanoparticles. The average of susceptibility for S.aureus had the lowest inhibition between 500-600 ppm and the highest at 700-800 ppm. The average susceptibility for K. pneumoniae is more constant in terms of inhibition at 600-1000 ppm. This study demonstrated the antimicrobial effect of silver nanoparticles synthesized under the specified conditions.
Authors and Affiliations
Fernanda PILAQUINGA
Keywords
Related Articles
- EP ID EP252164
- DOI -
- Views 281
- Downloads 0
STUDY OF THE FEATURES OF GAS FLOW BEHIND THE VORTEX BURNER OF THE COMBUSTION CHAMBER OF AN AIRCRAFT GAS TURBINE ENGINE
Currently, gas turbine engines are increasingly used as power units in the power industry, oil and gas industries, i.e., the process of converting aircraft gas turbine engines that have exhausted their flying resource in...
PROPOSAL OF A THERMAL DEGRADATION METHODOLOGY WITH SCRAPS OF LOGS FROM Araucaria columnaris
The reconstruction of past environments has been studied in several areas of science, aiming to help in understanding the several events that occurred on the planet. Plants are considered environmental markers and usuall...
THE EFFECTS OF ILLUMINATION ON THE EARLY DEVELOPMENT OF AMPHIBIANS (AMPHIBIA: ANURA AND CAUDATA)
The effects of illumination on the early development of four amphibian species — Lissotriton vulgaris (Linnaeus, 1758), Triturus cristatus (Laurenti, 1768), Rana arvalis (Nilsson, 1842), and R. temporaria (Linnaeus, 1758...
OPTIMIZATION OF SOLID-LIQUID EXTRACTION WITH THE LOW TEMPERATURE PARTITION FOR THE DETERMINATION OF CARBOFURAN IN SUGAR CANE
The broad application of cabofuran pesticide in sugar-cane cultures and its high toxicity makes it essential a search for new methods of preparing the samples to analysis of this pesticide in this culture. This work trie...
MOLECULAR ABSORPTION SPECTROSCOPY IN THE UV-VIS REGION FOR THE QUINOLINE-N-OXIDE, NICOTINAMIDE-N-OXIDE AND 2,2-DITHIOBISPYRIDINE-N-OXIDE LIGANDS
Required The purpose of this study was to analyze and quantify spectral parameters, the absorption bands, specifically in the uv-visible region of some N-oxide ligands. From the spectra, the area under the absorption ban...